Pentrox Cybersecurity B.V.
Senior-led penetration testing with visible follow-up
A penetration test should not disappear into email until a PDF arrives weeks later. Pentrox turns it into a project you can follow: findings appear while the test is running, critical issues are reported the same day, the final report follows within five business days, and every remediated finding is retested at no extra cost. Pentrox is an offensive security consultancy in Amsterdam, founded in 2026, working for organisations across the Benelux in English and Dutch. The team is five ethical hackers, each specialised in a different attack surface: web and API exploitation, mobile, infrastructure and Active Directory, cloud and Entra ID, source code review, and exploit development. Every assessment is led by a senior tester, and a second hacker reviews each finding before it is published. Our testers hold OSCP, OSCE, OSWE, eWPTX, eMAPT, CPTS, CWES and BSCP. We test web applications, APIs, mobile apps, external and internal networks, cloud configurations (AWS, Azure, GCP), source code and hardware, and run red teaming, scenario-based testing, phishing simulations and physical assessments. Compliance-scoped assessments cover NIS2, ISO 27001, PCI DSS v4 and DigiD. Organisations that release often can subscribe to Pentest as a Service. Reports carry an executive summary for leadership and technical findings with evidence, reproduction steps and remediation guidance for delivery teams. Clients speak directly with the tester doing the work. Indicative prices are published on our website, assessment data stays within the EEA, and a mutual NDA and data processing agreement are standard before scoping starts. 6 people in their team
Speaks Dutch, English
1 project in their portfolioSortlist member since 2026
Founded in 2026
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Services
1 service offered by Pentrox Cybersecurity B.V.
Description See digital risk sooner, act before the final report, and show what has been done. Pentrox is an offensive security consultancy in Amsterdam that runs senior-led penetration tests of web applications, APIs, mobile apps, internal and external infrastructure, cloud environments (AWS, Azure, GCP, Entra ID), source code and hardware, plus red teaming, scenario-based testing, phishing simulations and physical assessments. Compliance-scoped assessments cover NIS2, ISO 27001, PCI DSS v4 and DigiD. Every assessment is led by a senior ethical hacker and every finding is reviewed by a second tester before publication. Validated findings appear in the Pentrox Portal during the test, critical findings are reported the same day, the final report follows within five business days, and retesting of remediated findings is included. Clients talk directly to the tester doing the work. Our testers hold OSCP, OSCE, OSWE, eWPTX, eMAPT, CPTS, CWES and BSCP. Indicative prices are published on our website; most assessments fall between EUR 4,200 and 14,000 excluding VAT.Skills in Cyber Security (6) Cloud SecuritySecurity Risk AssessmentPenetration TestingVulnerability AssessmentPenetration testingSecurity auditWork in Cyber Security (1) Client in Cyber Security (1) Pentrox B.V. (own product)Software & Computer Services | local
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Team
6 members in Pentrox Cybersecurity B.V.'s team
StoryDifferent hackers, one standard. A pentest is only as good as the person running it, so Pentrox did not hire five versions of the same hacker. Each of us went deep in a different direction: source code, web and API exploitation, mobile, exploit research, attack chaining. A second hacker reviews every finding.
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Details
- HeadquarterKeizersgracht 241, 1016 EA Amsterdam, Netherlands